Pacific Silver Fir
Abies amabilis
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Santa Lucia Fir
Abies bracteata
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Balsam Fir
Abies concolor
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Grand Fir
Abies grandis
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Subalpine Fir
Abies lasiocarpa
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Subalpine Fir
Abies lasiocarpa var. lasiocarpa
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Balsam Fir
Abies magnifica
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California Red Fir
Abies magnifica var. magnifica
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Shasta Red Fir
Abies magnifica var. shastensis
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Noble Fir
Abies procera
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Ramshaw Meadows Abronia
Abronia alpina
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Sand Verbena
Abronia latifolia
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Red Sand Verbena
Abronia maritima
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Dwarf Sand Verbena
Abronia nana
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Coville's Dwarf Abronia
Abronia nana var. covillei
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Mojave Sand-verbena
Abronia pogonantha
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Transmontane Sand-verbena
Abronia turbinata
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Pink Sand Verbena
Abronia umbellata
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Pink Sand-verbena
Abronia umbellata var. breviflora
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Pink Sand Verbena
Abronia umbellata var. umbellata
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Hairy Sand Verbena
Abronia villosa
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Chaparral Sand-verbena
Abronia villosa var. aurita
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Desert Sand Verbena
Abronia villosa var. villosa
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Palmer's Indian Mallow
Abutilon palmeri
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Dwarf Abutilon
Abutilon parvulum
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Argentinian Biddy Biddy
Acaena pinnatifida
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California Sheepburr
Acaena pinnatifida var. californica
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California Copperleaf
Acalypha californica
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Shockley's Goldenhead
Acamptopappus shockleyi
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Goldenhead
Acamptopappus sphaerocephalus
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Rayless Goldenhead
Acamptopappus sphaerocephalus var. hirtellus
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Rayless Goldenhead
Acamptopappus sphaerocephalus var. sphaerocephalus
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San Mateo Thornmint
Acanthomintha duttonii
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San Diego Thornmint
Acanthomintha ilicifolia
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Santa Clara Thornmint
Acanthomintha lanceolata
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San Benito Thorn Mint
Acanthomintha obovata
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Heart-leaved Thorn-mint
Acanthomintha obovata ssp. cordata
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San Benito Thornmint
Acanthomintha obovata ssp. obovata
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Parish's Oxytheca
Acanthoscyphus parishii
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Abrams' Oxytheca
Acanthoscyphus parishii var. abramsii
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Cienega Seca Oxytheca
Acanthoscyphus parishii var. cienegensis
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Cushenbury Oxytheca
Acanthoscyphus parishii var. goodmaniana
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Parish's Oxytheca
Acanthoscyphus parishii var. parishii
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Vine Maple
Acer circinatum
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Rocky Mountain Maple
Acer glabrum
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Rocky Mountain Maple
Acer glabrum var. diffusum
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Douglas Maple
Acer glabrum var. douglasii
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Mountain Maple
Acer glabrum var. glabrum
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Big Leaf Maple
Acer macrophyllum
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Box Elder
Acer negundo
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Common Yarrow
Achillea millefolium
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Ann Gillette Yarrow
Achillea millefolium 'Ann Gillette'
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Astral Rose Yarrow
Achillea millefolium 'Astral Rose'
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Black Butte Yarrow
Achillea millefolium 'Black Butte'
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Calistoga Yarrow
Achillea millefolium 'Calistoga'
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High Sierra Dwarf Yarrow
Achillea millefolium 'High Sierra Dwarf'
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Island Pink Yarrow
Achillea millefolium 'Island Pink'
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King Range Yarrow
Achillea millefolium 'King Range'
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Sonoma Coast Yarrow
Achillea millefolium 'Sonoma Coast'
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Deer's Foot
Achlys californica